Green spots

September 4, 2021

Mel Waldron III, CGCS at Horton Smith Golf Course (@3sticksCGCS on twitter) posted this photo in April, 2018. His bent/poa greens in Southwest Missouri are growing on USGA sand and were fertilized 13 days prior to the photo. Green spots did not show up until 12 days after the fertilizer application. The fertilizer was a 16-4-8, 14.4% ammoniacal, 1.6% urea, particle size145 SGN, applied at 0.5 lbs N/1000 sq ft. The green spots are thought to be the result of…